Group 1 - The core viewpoint of the article is that Hezhima Intelligent has officially entered the active safety field of rail transit by launching an AI obstacle detection and warning system aimed at high-speed transportation networks [1] Group 2 - The company is focusing on enhancing safety measures in rail transit, which is a critical area for high-speed transportation [1] - The introduction of the AI system indicates a strategic move to leverage technology for improving operational safety in the transportation sector [1] - This development may position the company as a key player in the growing market for rail safety solutions [1]